Hi I19bal,thank you very much for this great project! :)I have a question: Is it right, that the PWR ON Signal is always connected to GND and the PWR OK Signal is connected to GND through a transistor? Or is this turned around by mistake?I thought if you press the button, the Arduino Nano "opens" the transistor and the Signal of PWR ON is okay. Is this wrong?GreetingsAlex from Germany =)